HAMAGUCHI, Yoshikazu

Title	Professor
Email	yhama#@#human.tsukuba.ac.jp (please replace #@# with @)
URL
Degree	Ph.D. in Psychology
Division	Psychology

Research Field	Clinical Developmental Psychology, Developmental Psychology
Undergraduate Program	School of Human Sciences, College of Psychology
Graduate School Program (Main)	Psychology (Master's Program, Doctoral Program)
Graduate School Program (Sub)	Frontier Medical Sciences (Master's Program), Public Health (Master's Program, Doctoral Program), Human Care Science (Doctoral Program)
Research Themes	aggression and assertion in childhood and adolescence bullying relational aggression, proactive/reactive aggression social-information processing parenting behavior, parent training psychological treatment for children with elective mutism
Publications/Major Achievements	Hamaguchi, Y. (2017). Development of proactive and reactive aggressiveness scales for university students (SPRAS-U) : Relationship with aggressive behavior, Japanese Journal of Educational Psychology, 65, 248-264. Hamaguchi, Y. & Fujiwara, T. (2016). Proactive-reactive aggressiveness in high school students:Scale construction, examination of relations to physical and relational aggression, exploration of subtypes, Japanese Journal of Educational Psychology, 64, 59-75. Hamaguchi,Y., Ishikawa, M. & Mieno, S. (2009). Proactive-reactive aggressiveness and psycho-social maladjustment in junior high school students:Scale construction, examination of relations to physical and relational aggression, exploration of subtypes, Japanese Journal of Educational Psychology, 64, 59-75. Kawabata,Y., Crick,N.R. & Hamaguchi,Y. (2013). The association of relational and physical victimization with hostile attribution bias, emotional distress, and depressive symptoms:A cross-cultural study. Asian Journal of Social psychology,16, 260-270. Kawabata,Y.,Crick,N.R. & Hamaguchi,Y. (2010). Forms of aggression,social-psychological adjustment, and peer victimization in a Japanese sample:The moderating　role of positive and negative friendship quality. Journal of Abnormal child Psychology, 38, 471-484. Kawabata,Y.,Crick,N.R. & Hamaguchi,Y. (2010). The Role of culture in relational aggression: associations with social-psychological adjustment problems among Japanese and U.S. school-aged children.International Journal of Behavioral Development, 34, 354–362.
Scientific Membership	The Japanese Psychological Association The Japanese Association of Educational Psychology The Japanese Association of Counseling Science The Japanese Association of Criminal Psychology The Japanese Society for Prevention of Child Abuse and Neglect
Social and Outreach Activity	Representative of Counseling Service for Child & Parent in University of Tsukuba Director of The Japanese　Psychological Association Chief editor of Japanese Journal of Counseling Science
Related Links	https://www.human.tsukuba.ac.jp/psyche/institute/index_e.html https://trios.tsukuba.ac.jp/en/researcher/0000001540 (Univ. of Tsukuba Researchers Information)